Drivers of deadwood decay of 13 temperate tree species are similar between forest and grassland habitats

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Lydia Kipping - , Helmholtz Centre for Environmental Research, Coburg University, University of Bayreuth (Author)
  • Florian Maurer - , Coburg University (Author)
  • Martin M. Gossner - , Swiss Federal Institute for Forest, Snow and Landscape Research, ETH Zurich (Author)
  • Sarah Muszynski - , Coburg University (Author)
  • Tiemo Kahl - , UNESCO Biosphere Reserve Thuringian Forest (Author)
  • Harald Kellner - , International Institute Zittau, Chair of Environmental Biotechnology (Author)
  • Wolfgang W. Weiser - , Technical University of Munich (Author)
  • Nico Jehmlich - , Helmholtz Centre for Environmental Research (Author)
  • Matthias Noll - , Coburg University, University of Bayreuth (Author)

Abstract

Deadwood provides an important carbon source in forests and wooded ecosystems and, accordingly, forest management strategies discuss the enrichment of deadwood amount and diversity by different tree species. To investigate the decomposition processes of enriched deadwood, we simultaneously placed 3,669 size-standardized and gamma sterilized wood specimens of 13 tree species (Populus tremula, Tilia cordata, Prunus avium, Betula pendula, Carpinus betulus, Fraxinus excelsior, Quercus robur, Fagus sylvatica, Acer platanoides, Larix decidua, Pinus sylvestris, Picea abies, and Pseudotsuga menziesii) at a total of 300 forest and grassland plots in three regions in Germany covering large gradients of management intensity and environmental conditions. After 1 year, mass loss was calculated and its relationship with wood traits and environmental conditions was assessed to determine the most important factors. Mass loss was overall higher in forest compared to grassland habitats, with wood traits as the most important driver, followed by region and environmental factors related to microclimate. However, management intensity was less relevant to explain the mass loss in both habitats. Our results suggest that decomposition of enriched deadwood, even after removal of endophytes, is influenced by the same drivers (positively by moisture and abundance of macronutrients, negatively by lignin and phenol concentration) as naturally occurring wood. Furthermore, due to the immense and standardized experimental setting, our study contributes to a better understanding of the important drivers of mass loss in different tree species and thus provides the basis for predictions of the carbon cycle in a changing world.

Details

Original languageEnglish
Article number1020737
JournalFrontiers in Forests and Global Change
Volume2022
Issue number5
Publication statusPublished - 7 Dec 2022
Peer-reviewedYes

Keywords

Keywords

  • deadwood decomposition, forest and grassland habitats, management intensities, mass loss, model averaging approach, region, wood traits

Library keywords